Grapple.



PATENTED MAR. 26

I. K. FLYNN. GRAPPLE. I APPLICATION FILED NOV.27, 1906.

Wit" eases panying drawings, in which JOHN K. FLYNN, OF DULUTH,MINNESOTA.

GRAPPLE.

Specification of Letters Patent.

Patented March 26, 1907.

Application filed November 27, 1906. Serial No. 345,324.

To all whom it TIMI/y concern:

Be it known that I, J OHN K. FLYNN, a citizen of the United States,residing at Duluth, in the county of St. Louis and State of Minnesota,have invented certain new and useful Improvements in Grapples, of whichthe following is a specification.

My invention relates to grapples employed in clearing land of stumps,&c., and is constructed in relation with a derrick having on the end ofits boom a V-shaped structure that engages the arms of the grapple andby spreading them releases the jaws of the grapple from the stump, sothat it can be dropped in any place desired, usually in a fire built onthe. land being cleared.

My invention will be described in detail hereinafter and illustrated inthe accom- Figure 1 is a side view of derrick, showing my improvementssecured thereto; and Fig. 2, a detail view of the grapple and means fordumping it.

In the drawings similar reference characters indicate correspondingparts in both views.

A indicates a platform, which may be, as shown, a sled, or, ifpreferred, may be mounted on wheels for easier transportation, or may bepermanently secured in position, though for the purpose of clearing landof stumps, &c., it is necessary to construct the platform so that it maybe transported from place to place.

B indicates a mast, secured to platform A, having its upper end bracedby means of beam C, secured to platform A.

D represents the boom, revolubly mounted on mast B by means of sleeve E.

F indicates a block secured to the end of boom D, G a block secured tomast B, and H a drum secured to the mast, while I indicates a cablegeared to blocks F and G and secured on drum H, the purpose of saidconstruction being to regulate the angle of the boom D.

J indicates a V-shaped plate secured to the end of boom D.

K indicates a pulley journaled in the end of boom D, L, a pulleyjournaled on the boom below V-shaped plate J; M, a pulley jour- I naledin the upper end of mast B, and N a pulley journaled at the base ofbrace-beam C.

0 represents the grapple, consisting of two arms I, pivotally securedtogether intermediate of their ends and having their upper ends curvedoutwardly, as shown at p.

Q represents a double pulley and block, connected'by means of links Rwith arms P.

S represents a cable secured to the end of boom D, then passed aroundone of the pulleys in block Q, then around pulley L, back around theother pulley in block Q, and then around pulleys K, M, and N, andprovided with a hook 'I or other draft appliance.

By pulling on hook T it will be understood that the grapple 0 will beraised and that when the curved ends p of the grapple-arms are forcedapart, so that the grapple is released from its load.

It will be understood that by properly operating the device stumps maybe lifted from their position in a field and automatically dumped on afire to destroy them or into a wagon to haul them away.

Having thus described my invention, what I claim is In combination witha derrick having a swinging boom, a V-shaped plate secured to the freeend of the boom, a pulley j ournaled in the end of the boom, a pulleyjournaled intermediate the ends of the boom, a grapple having armsshaped to engage the Vshaped plate aforesaid, links pivotally secured tosaid arms, a double block secured to said links, and a cable having oneend secured to the outer end of the boom, then around one of the pulleysin the block, then around the pulley j ournaled intermediate the ends ofthe boom, then around the other pulley in the block, then around thepulley on the end of Vided with a draft appliance, substantially asshown and described.

In testimony whereof I hereto aHiX my signature in the presence of twowitnesses.

JOHN K. FLYNN. lVitnesses:

JOHN B. ARNOLD, B. F. ANDERSON.

P engage the V-shaped plate J the arms P the boom, and the free end ofthe cable pro- J

